What holiday is on May 18?

Monday, May 18, 2026: Ascension Day, Battle of Las Piedras, Discovery Day and 7 more. It's a public holiday in 6 countries.

Ascension Day

• 🇨🇴 Colombia Public holiday
• 🇻🇪 Venezuela Public holiday, listed as Ascension Day Holiday

Battle of Las Piedras

• 🇺🇾 Uruguay Public holiday

Discovery Day

• 🇰🇾 Cayman Islands Public holiday

Flag and Universities Day

• 🇭🇹 Haiti Public holiday

Flag Day

• 🇭🇹 Haiti Public holiday

Hajj season begins

• 🇦🇪 United Arab Emirates Observance

International Museum Day

• 🇸🇬 Singapore Observance

National Patriots' Day

• 🇨🇦 Canada Public holiday

Restoration of Somaliland Sovereignty

• 🇸🇴 Somalia Regional holiday

Victoria Day

• 🇨🇦 Canada Public holiday